body {
    font-family: 'Inter', sans-serif;
    background-color: #0d1117;
    overflow: hidden; /* Prevent scrolling on the body */
}
.card {
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 0.75rem;
}
.btn {
    display: inline-block;
    padding: 0.65rem 1rem;
    border-radius: 0.375rem;
    font-weight: 600;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    text-align: center;
}
.btn-primary { background-color: #2f81f7; color: white; }
.btn-primary:hover { background-color: #388bfd; }
.btn-secondary { background-color: #21262d; border: 1px solid #30363d; }
.btn-secondary:hover { background-color: #30363d; }
.btn-danger { background-color: #da3633; color: white; }
.btn-danger:hover { background-color: #f85149; }

.input-field {
    width: 100%;
    background-color: #0d1117;
    border: 1px solid #30363d;
    border-radius: 0.375rem;
    padding: 0.75rem;
    color: #c9d1d9;
}
.input-field:focus {
    outline: none;
    border-color: #2f81f7;
    box-shadow: 0 0 0 3px rgba(47, 129, 247, 0.3);
}

/* App Layout */
.sidebar {
    background-color: #161b22;
    border-right: 1px solid #30363d;
}
.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: #8b949e;
    font-weight: 500;
    border-left: 3px solid transparent;
}
.nav-link:hover {
    background-color: #30363d;
    color: #c9d1d9;
}
.nav-link.active {
    color: #c9d1d9;
    background-color: #0d1117;
    border-left-color: #2f81f7;
}
.nav-link i { width: 1.5rem; }

/* Modal */
.modal-content {
    max-width: 500px;
    width: 95%;
    transform: scale(0.95);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}
#modal-container.visible .modal-content {
    transform: scale(1);
    opacity: 1;
}

/* Toast */
.toast {
    background-color: #21262d;
    padding: 0.75rem 1.25rem;
    border-radius: 0.375rem;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }